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Dyfyniad Arddull ChicagoGhemawat, Pankaj. World 3.0: Global Prosperity and How to Achieve It. NA. Boston: HBR, 2011.
Dyfyniad MLAGhemawat, Pankaj. World 3.0: Global Prosperity and How to Achieve It. NA. HBR, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.